# What is the t3code License? MIT License Explained

> Understand the t3code license. Discover how the MIT License allows commercial use, modification, and distribution with few restrictions for your projects.

- Repository: [Ping.gg/t3code](https://github.com/pingdotgg/t3code)
- Tags: deep-dive
- Published: 2026-04-18

---

**The t3code repository is released under the MIT License, a permissive open-source license that allows commercial use, modification, and distribution with minimal restrictions.**

The `pingdotgg/t3code` project is a collection of tools and utilities developed by Ping Labs. Understanding the **t3code license** is essential before integrating it into your own applications, as it determines your rights and obligations when using the source code.

## Understanding the MIT License for t3code

The MIT License is one of the most permissive and widely adopted open-source licenses. In the `pingdotgg/t3code` repository, the full license text resides in the top-level `LICENSE` file, while the [`package.json`](https://github.com/pingdotgg/t3code/blob/main/package.json) file explicitly declares `"license": "MIT"` in its metadata.

### Key Permissions and Requirements

The **t3code license** grants you the following rights:

- **Freedom to use** the code for any purpose, including commercial applications without royalty payments.
- **Permission to modify** the source code and create derivative works.
- **Right to redistribute** the original or modified versions of the software.
- **Ability to sublicense** the software to third parties.

However, the MIT License imposes these requirements:

- You must **retain the copyright notice** and license text in all copies or substantial portions of the software.
- You must include the **disclaimer of warranty** stating the software is provided "as is" without warranty of any kind.

### Where to Find the License File

The canonical license text is located at:

```

https://github.com/pingdotgg/t3code/blob/main/LICENSE

```

You can also verify the license declaration programmatically by examining the [`package.json`](https://github.com/pingdotgg/t3code/blob/main/package.json) file in the repository root, which contains the field `"license": "MIT"`.

## How to Verify the t3code License Programmatically

If you need to confirm the license status of t3code within your build pipeline or application, you can read and parse the `LICENSE` file directly using Node.js.

```typescript
import fs from "node:fs";
import path from "node:path";

const licensePath = path.resolve(import.meta.dirname, "..", "LICENSE");
const licenseText = fs.readFileSync(licensePath, "utf8");

// Simple verification that the project uses the MIT license
if (licenseText.includes("MIT License")) {
  console.log("t3code is MIT‑licensed");
}

```

This approach is useful when auditing dependencies or generating automated license reports for compliance purposes.

## Using t3code in Your Projects

Since the **t3code license** is MIT, you can safely include t3code as a dependency in both open-source and proprietary projects.

```bash

# Install the t3code package (MIT‑licensed) as a dependency

npm i @t3code/cli

```

The MIT license permits inclusion of t3code in commercial applications without requiring you to open-source your own code, provided you maintain the copyright notice and license text as specified in the `LICENSE` file.

### Adding License Headers to Derivative Work

When creating modified versions of t3code files, it is best practice to include a license header that acknowledges the original copyright:

```typescript
/**
 * © 2026 T3 Tools Inc.
 * Licensed under the MIT License.
 * See the LICENSE file in the repository root for details.
 */

```

This ensures compliance with the **t3code license** requirement to preserve copyright notices while clearly documenting the licensing terms for future developers.

## Summary

- The **t3code license** is the **MIT License**, a permissive open-source license found in the `LICENSE` file at the repository root.
- The [`package.json`](https://github.com/pingdotgg/t3code/blob/main/package.json) explicitly declares `"license": "MIT"`, confirming the licensing metadata.
- You can use, modify, and distribute t3code for commercial or non-commercial purposes, provided you retain the copyright notice and license text.
- The MIT License does not require you to open-source derivative works or provide attribution beyond maintaining the original copyright notice.

## Frequently Asked Questions

### Is t3code free for commercial use?

Yes, the **t3code license** (MIT License) explicitly permits commercial use without requiring payment or royalties. You can integrate t3code into proprietary applications, sell products built with it, and use it in enterprise environments, provided you include the original copyright notice and license text.

### Where is the t3code license file located?

The license file is located at the root of the `pingdotgg/t3code` repository under the filename `LICENSE`. You can view the complete text at `https://github.com/pingdotgg/t3code/blob/main/LICENSE`. Additionally, the [`package.json`](https://github.com/pingdotgg/t3code/blob/main/package.json) file contains the `"license": "MIT"` field for programmatic verification.

### Do I need to open-source my project if I use t3code?

No, the MIT License is not a "copyleft" license. You do not need to open-source your project or release your source code under the same license when using t3code. The **t3code license** only requires that you preserve the copyright notice and license text in your distribution, but your own code can remain proprietary or under any license you choose.

### What does the package.json say about the t3code license?

The [`package.json`](https://github.com/pingdotgg/t3code/blob/main/package.json) file in the `pingdotgg/t3code` repository explicitly declares `"license": "MIT"`. This metadata field allows package managers like npm and automated license scanning tools to quickly identify the licensing terms without parsing the full `LICENSE` file text.